#3B130B#3B130B

#3B130B is a very dark, moderate red. Relative luminance 0.014; OKLCH L 24.9% C 0.065 H 33.1°. Best body text is #FFFFFF at 16.36:1 contrast (WCAG AA passes).

Color values

HEX	#3B130B
RGB	rgb(59, 19, 11)
HSL	hsl(10, 69%, 14%)
HSV	hsv(10, 81%, 23%)
CMYK	cmyk(0%, 67.8%, 81.4%, 76.9%)
CIE-LAB	lab(12.09, 19.16, 13.98)
CIE-LCH	lch(12.09, 23.72, 36.11°)
OKLab	oklab(24.94% 0.0549 0.0357)
OKLCH	oklch(24.94% 0.065 33.1)
XYZ	xyz(2.0971, 1.4200, 0.4802)
Luminance	0.0142 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B130B #0B333B

analogous

#3B0B1B #3B130B #3B2B0B

triadic

#3B130B #0B3B13 #130B3B

tetradic

#3B130B #1B3B0B #0B333B #2B0B3B

square

#3B130B #1B3B0B #0B333B #2B0B3B

split-complementary

#3B130B #0B3B2B #0B1B3B

monochromatic

#1A0805 #1A0805 #3B130B #6F2415 #A2341E

Accessibility & contrast

On white

16.36

#3B130B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.28

#3B130B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3B130B

16.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B130B	#FFFFFF	#000000	##FFFFFF
##3B130B	1.00	16.36	1.28	16.36
#FFFFFF	16.36	1.00	21.00	1.00
#000000	1.28	21.00	1.00	21.00
##FFFFFF	16.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E1A0A

Deuteranopia (green-blind)

#28230A

Tritanopia (blue-blind)

#420A11

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #3b130b;
/* rgb */ color: rgb(59, 19, 11);
/* oklch */ color: oklch(24.9% 0.065 33.1);

Tailwind

colors: {
  custom: {
    50: '#75524b',
    500: '#3b130b',
    950: '#000000',
  },
}

SCSS

$custom: #3b130b;
$custom-light: #75524b;
$custom-dark: #000000;

JSON

{
  "hex": "#3b130b",
  "rgb": {
    "r": 59,
    "g": 19,
    "b": 11
  },
  "hsl": {
    "h": 10,
    "s": 68.571,
    "l": 13.725
  },
  "oklch": {
    "l": 0.24943,
    "c": 0.06549,
    "h": 33.1
  },
  "luminance": 0.0142
}

Semantic roles & 50–950 ramp

primary

#3B130B

secondary

#2A6B78

accent

#CEEB3C

background

#F7F4F4

surface

#EDE7E7

border

#C8C3C3

text

#090201

muted

#7B7877

Preview Lab

Preview with #3B130B

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →